September weather forecastConcarneau, France
September
Weather in September
September, the first month of the autumn in Concarneau, is also an enjoyable month, with an average temperature ranging between min 12.4°C (54.3°F) and max 19.6°C (67.3°F).Temperature
The average high-temperature during September is a comfortable 19.6°C (67.3°F), almost matching the conditions of the preceding month. The average temperature drops to a cool 12.4°C (54.3°F) during the night in the month of September.Humidity
The average relative humidity in September is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 26mm (1.02") of precipitation.Snowfall
In Concarneau, snow does not fall in March through November.Sea temperature
In Concarneau, in September, the average water temperature is 17.2°C (63°F).Note: In water with a temperature of 17.2°C (63°F), most people do not enjoy swimming. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), breathing becomes increasingly difficult to control.
Daylight
In Concarneau, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 07:34 and sunset at 20:56. On the last day of the month, sunrise is at 08:14 and sunset at 19:56 CEST.
Sunshine
The average sunshine in September in Concarneau is 7.5h.UV index
In Concarneau, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Concarneau, France
- Average high temperature in September: 19.6°C
The warmest month (with the highest average high temperature) is July (21.1°C).
The month with the lowest average high temperature is January (9.7°C).
- Average low temperature in September: 12.4°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (5.1°C).
Average pressure in September
Concarneau, France
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is September (1018.5mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in September
Concarneau, France
- Average wind speed in September: 14.3km/h
The windiest month (with the highest average wind speed) is January (20.6km/h).
The calmest month (with the lowest average wind speed) is August (14km/h).
Average humidity in September
Concarneau, France
- Average humidity in September: 80%
The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is April (79%).
Average rainfall in September
Concarneau, France
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (95mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in September
Concarneau, France
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is January (20.4 days).
The month with the least rainy days is September (12.2 days).
Average snowfall in September
Concarneau, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (8mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Concarneau, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Concarneau, France
- Average sea temperature in September: 17.2°C
The best month for swimming (with the highest average sea temperature) is August (17.4°C).
The coldest months (with the lowest average sea temperature) are February and March (10.1°C).
Average daylight in September /
Average sunshine in September
Concarneau, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Concarneau, France
- Average sunshine days in September: 15 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is November (7.5 days).
Average UV index in September
Concarneau, France
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Concarneau, France
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 40).
Average visibility in September
Concarneau, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
